Sisyrinchium ( Pole Star Sisyrinchium )

Semi-evergreen perennial that forms clumps. Leaves are narrow and linear reaching up to 16 inches. Erect stems bear continual star-shaped, white flowers with yellow throats through summer. Will self-seed freely. Ideal in rock garden or gravel planting.

Sisyrinchium ( Biscutella Sisyrinchium )

Semi-evergreen perennial that forms clumps. Leaves are linear and reach 7 inches long. Erect stems bear short-lived, trumpet-shaped, light yellow flowers with dark veins and suffused with purplish brown. Blooms in summer.

Sinojackia xylocarpa ( Sinojackia )

(Plant width:20 feet) (Plant height:20 feet) Bushy shrub or spreading tree ideal in a woodland garden or as speciman. Leaves are dark green, elliptic to oval with pointed tips, and shiny. Star-shaped, pendent white flowers with yellow stamens bloom in […]

Sinofranchetia chinensis ( Chinese Sinofranchetia )

(Plant width:undetermined) (Plant height:40 feet) Woody climber with blueish, purple spotted stem best grown through or over a large shrub. Leaves are on long stalks and have dark green leaflets. On female plants, pendent racemes of white flowers bloom in […]

Sinobambusa gigantea ( NULL )

(Plant width:varies) (Plant height:55 feet) The shoots of this species have long, purple hairs in a ring around the nodes. This genus of bamboo is similar to Semiarundinaria.

Sinningia speciosa ( Mont Blanc Florists Gloxinia )

Unusual plant related to African Violets, with some similar care needs. Ovate, dark green leaves with scalloped edges and soft hairs, 8″ to 12″ long. Blooms are trumpet-shaped, gently split into five petals, to 2″ across, borne in summer. ‘Mont […]

Sinningia speciosa ( Florists Gloxinia )

Unusual plant related to African Violets, with some similar care needs. Ovate, dark green leaves with scalloped edges and soft hairs, 8″ to 12″ long. Blooms are trumpet-shaped, gently split into five petals, to 2″ across. Blooms in summer. As […]